J1939 EV CAN definitions

[levelnull]

Hi everyone,

i am looking for the CAN definitions of the EV related parameters in J1939.
There are several available, like

• min and max cell voltage
  packV
  packCurrent
  SOC
  SOH
  etc

Maybe anyone here came across these definitions?

Thanks,
Marco

[tom91]

J1939 standard is pay to play. You need to pay for a license to obtain a J1939 dbc that explains the message formats

https://www.csselectronics.com/pages/j1 ... o-tutorial

[levelnull]

Yep I know, but maybe theres some info out there.
There are several repos on GitHub, but they dont include the EV related messages.

[uhi22]

Not sure whether it helps, but google found some information regarding battery data in J1939:
https://www.google.com/url?sa=t&rct=j&q ... i=89978449
https://www.bender.de/fileadmin/content ... N_XXEN.pdf

[levelnull]

thats a nice find, thanks!
Will try to construct some DBC out of it and see if it fits

[uhi22]

Which kind of EV is using J1939?

[levelnull]

No idea
I am trying to use a Teltonika FMC650 device as a remote gateway to my own EV conversion.
Used a PI before, but really wanted to save some energy, as the pi uses a lot.
The FMC650 seemed interesting, but its very immature:

• Config tool doesn't work reliable at all
  manual CAN messages are not being sent
  encoding isn't documented very well
  etc

Because the manual CAN definitions the device should be able to send don't work, my idea was to implement the J1939 protocol (which the teltonika uses out of the box) in my VCU, but I dont think spending > 300 Euro is worth it.
The above mentioned PDF unfortunately doesn't match what the Teltonika expects.